Written by adminJune 9, 2023 In this article, we will review 3 methods to detect voids under concrete slabs. We will review Ground Penetrating Radar, Ultrasonic Pulse Echo, and Impact-Echo/Impulse-Response methods for evaluating the location and extent of voids under concrete slabs and pavements. Voids Under Concrete Voids under concrete slabs refer
Written by adminFebruary 3, 2026 Concrete tunnel linings are critical structural elements that protect highways, railways, utilities, and underground infrastructure from ground loads, water ingress, and dynamic loads. Over time, defects such as voids behind linings, delamination, cracking, poor grouting, and material degradation can compromise performance and service life. The nondestructive evaluation
Written by adminJanuary 31, 2021 Ground Penetrating Radar (GPR) is one of the most widely used non-destructive test methods for concrete structures. In new construction, GPR can be used to identify the location of rebar and conduit to minimize the risk of damage during core drilling and saw cutting. In existing structures,
Written by adminJune 3, 2025 This article explores the applications and advantages of Non-destructive Testing for Water Treatment Plant Rehabilitation projects across Canada. Water and wastewater treatment facilities are critical infrastructures that ensure public health and environmental protection (read more). In Canada, many of these facilities are aging and require regular assessments,
Written by adminApril 8, 2024 Introduction Nondestructive testing and evaluation (NDT&E) play a crucial role in ensuring the safety and integrity of concrete dams and hydro structures. With the growing emphasis on dam safety and the need to prolong the service life of these critical infrastructure assets, the application of advanced NDT&E
Written by adminJanuary 22, 2025 Artificial Intelligence (AI) is revolutionizing various industries, and the field of non-destructive testing (NDT) of concrete structures is no exception. By integrating AI with traditional NDT methods, engineers and inspectors can achieve more accurate, efficient, and insightful assessments of concrete infrastructure. In this article, we explores 5
Written by adminSeptember 3, 2024 Deep foundations, such as piles and drilled shafts, play a crucial role in ensuring the stability and longevity of structures, especially those built on soft or unstable soils. Given the critical nature of these elements, it is essential to accurately assess their integrity and load-bearing capacity. One
Written by adminSeptember 18, 2025 Introduction Modern transportation infrastructure is changing rapidly, and modernizing inspection practices for evolving transportation infrastructure plays a crucial role. With growing demands for durability, longer service life, and fewer maintenance needs, engineers and asset managers are embracing innovative construction materials and systems. Across North America and beyond,
Written by adminMay 24, 2023 Precast concrete elements are usually manufactured and cured in a controlled environment. This controlled process results in high quality and consistency of the end products. However, construction errors, formwork issues, and damages during transportation and installation can impact the quality, and integrity of these precast elements. Non-destructive
Written by adminJune 23, 2023 Detecting Corrosion in Post-Tensioned Structures: Non-Destructive Evaluation Methods In this article, we will explore how non-destructive testing (NDT) and evaluation methods help structural engineers and construction managers in detecting corrosion in post-tensioned structures. By using a multi-technology approach that includes Ground Penetrating Radar (GPR), Ultrasonic Pulse Echo
